The interdependence between the biosphere and the atmosphere.
D000388:Air; D000397:Air Pollution; D055592:Biophysical Phenomena; D001703:Biophysics; D002245:Carbon Dioxide / Q000378:metabolism; D004777:Environment / Q000266:history*; D005118:Extraterrestrial Environment / Q000032:analysis / Q000266:history*; D006801:Humans; D006859:Hydrogen / Q000378:metabolism; D009584:Nitrogen / Q000378:metabolism; D010100:Oxygen / Q000378:metabolism; D012119:Respiration / Q000266:history*
D002245:Carbon Dioxide; D006859:Hydrogen; D009584:Nitrogen; D010100:Oxygen